Question

epistasis involves inhibition of gne called as​

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There are six common types of epistasis gene interactions: dominant, dominant inhibitory, duplicate dominant, duplicate recessive, polymeric gene interaction, and recessive. When a dominant allele masks the expression of both dominant and recessive alleles at another locus, it is referred to as dominant epistasis or simple epistasis. When it is a recessive allele that masks the expression, it is called recessive epistasis. Some genes can also mask other genes by suppression. This is referred to as dominant inhibitory or suppression epistasis because the gene is acting as a suppressor, or a factor that prevents the expression of another allele.Duplicate types of epistasis depend on two loci. When there is a dominant allele masking the expression of recessive alleles at two loci, this is known as duplicate dominant epistasis or duplicate gene action. When there is a recessive allele masking the expression of dominant alleles at two loci, this is known as duplicate recessive epistasis. It is also known as complementary gene action because both genes are required in order for the correct phenotype to be present.Polymeric gene interaction is the combination of two dominant alleles that intensifies the phenotype or creates a median variation. Alone, each dominant allele produces a physical trait different from the combined dominant alleles. Therefore, this creates three phenotypes for only two dominant alleles. This shows that neither dominant allele is prevailing over the other dominant allele.